Those wretches tainted with the error of Indifferentism and Modernism hold that dogmatic truth is not absolute, but relative: that is, that it must adapt itself to the varying necessities of the times and the varying dispositions of souls, since it is not contained in an unchangeable revelation, but is, by its very nature, meant to accommodate itself to the life of man.
Pope Pius XIWhether considered as a doctrine, or as an historical fact, or as a movemement, socialism, if it really remains socialism, cannotbe brought into harmony with the dogmas of the Catholic church.... Religious socialism, Christian socialism, are expressions implying a contradiction in terms.
Pope Pius XIThe Rosary is a powerful weapon to put the demons to flight and to keep oneself from sinโฆIf you desire peace in your hearts, in your homes, and in your country, assemble each evening to recite the Rosary. Let not even one day pass without saying it, no matter how burdened you may be with many cares and labors.
Pope Pius XIIf our age in its pride laughs at and rejects Our Lady's Rosary, a countless legion of the most saintly men of every age and of every condition have not only held it most dear and have most piously recited it but have also used it at all times as a most powerful weapon to overcome the devil, to preserve the purity of their lives, to acquire virtue more zealously, in a word, to promote peace among men.
Pope Pius XIAmong the various supplications with which we successfully appeal to the Virgin Mother of God, the Holy Rosary without doubt occupies a special and distinct place. This prayer, which some call the Psalter of the Virgin or Breviary of the Gospel and of Christian life, was described and recommended by Our Predecessor of happy memory, Leo XIII
Pope Pius XITo each, therefore, must be given his own share of goods, and the distribution of created goods, which, as every discerning person knows, is laboring today under the gravest evils due to the huge disparity between the few exceedingly rich and the unnumbered propertyless, must be effectively called back to and brought into conformity with the norms of the common good, that is, social justice.
Pope Pius XIThis [the opening of the Vatican City radio station built by Marconi earlier in 1931] was a new demonstration of the harmony between science and religion that each fresh conquest of science ever more luminously confirms, so that one may say that those who speak of the incompatibility of science and religion either make science say that which it never said or make religion say that which it never taught.
Pope Pius XI